CVE-2018-7186

critical

Description

Leptonica before 1.75.3 does not limit the number of characters in a %s format argument to fscanf or sscanf, which allows remote attackers to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact via a long string, as demonstrated by the gplotRead and ptaReadStream functions.

References

https://bugs.debian.org/890548

https://github.com/DanBloomberg/leptonica/commit/ee301cb2029db8a6289c5295daa42bba7715e99a

https://lists.debian.org/debian-lts/2018/02/msg00054.html

https://lists.debian.org/debian-lts-announce/2018/03/msg00005.html

https://security.gentoo.org/glsa/202312-01

Details

Source: Mitre, NVD

Published: 2018-02-16

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical